This winter, if you're going to update one thing in your wardrobe, a new coat is a wise place to start. Not only is it the outer shell to your outfit (and therefore the first thing people see) but an investment piece that will see you through the years. The coats we have selected here are inspired by some iconic photographs of men wearing outerwear that, like all true classics, have stood the test of time. Take, for instance, Mr Paul Newman in the 1950s, enveloped in an outsize overcoat while perusing a bookstall, as a great way to look cool (and warm) on a weekend walk. Mr Cary Grant, hat in hand and purposeful in gait, seems dashingly dressed for a brisk walk to the office in his beautifully cut double-breasted number. The options are diverse and equally appealing, and as practical and handsome today as they will be for a long time coming. Why not shimmy while you shop to "Baby, It's Cold Outside", by She & Him? You'll be jigging in the cold streets in no time.